CN210484700U - Ball sealing check valve - Google Patents
Ball sealing check valve Download PDFInfo
- Publication number
- CN210484700U CN210484700U CN201921598670.2U CN201921598670U CN210484700U CN 210484700 U CN210484700 U CN 210484700U CN 201921598670 U CN201921598670 U CN 201921598670U CN 210484700 U CN210484700 U CN 210484700U
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- sealing
- ball
- seat
- check valve
- sealing ring
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Abstract
The ball sealing check valve comprises a valve body, a sealing ring, a ball seat, a spring, a gasket and a spring collar for a hole; the valve body is provided with a water inlet, a water outlet and an inclined plane sealing seat; the water inlet and the water outlet are sealed and isolated by a ball and a sealing ring; the method is characterized in that: the check valve is provided with two sealing pairs, one sealing pair is a soft seal consisting of a ball and a sealing ring, and the second sealing pair is a hard seal consisting of a ball and an inclined plane sealing seat; when the soft seal fails due to high temperature, the hard seal composed of the ball and the inclined plane sealing seat can still prevent the media from flowing backwards; the ball is used as a sealing component, so that the repeated positioning and sealing effect is good; the sealing ring is designed into an X shape, is sensitive to elastic deformation, can realize sealing by only small pressure, can reduce spring force and realize low-pressure sealing.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to the check valve that can prevent the fluid refluence in the valve.
Background
In the existing engineering technology, a valve is used in many occasions, and particularly in chemical engineering and hydraulic engineering, the valve is required to be used as an opening and closing element for fluid flow. In some projects, it is necessary to ensure that the fluid flows in a fixed direction and prevent the fluid from flowing backwards, and for this reason, technicians design a check valve with one-way conduction, and the fluid flows in a previously designed direction, and if the fluid flows reversely, the check valve is closed, so that the fluid flows in one direction.
Disclosure of Invention
The embodiment of the utility model provides a ball sealing check valve can control fluidic one-way flow, prevents the fluid refluence.
The utility model adopts the technical proposal that: a ball sealing check valve comprises a valve body, a sealing ring, a ball seat, a spring, a gasket and a spring collar for a hole; the valve body is provided with a water inlet, a water outlet and an inclined plane sealing seat; the water inlet and the water outlet are sealed and isolated by a ball and a sealing ring; the method is characterized in that: the check valve has two sealing pairs, one sealing pair is a soft seal composed of a ball and a sealing ring, and the second sealing pair is a hard seal composed of a ball and an inclined plane sealing seat.
As an improvement, the ball seat is designed into a cross shape, so that the flow area of the medium is increased; the ball seat is provided with a concave spherical surface which can be completely attached to the ball body, so that the ball is prevented from falling off in the up-and-down moving process, and repeated positioning and sealing are realized; the ball seat is made of nontoxic plastics.
As improvement, the sealing ring is designed into an X shape, elastic deformation is sensitive, sealing can be realized by only small pressure, spring force can be reduced, and low-pressure sealing is realized.
Compared with the prior art, the utility model has the advantages of: the utility model has two sealing pairs, one sealing pair is a soft seal composed of a ball and a sealing ring, and the second sealing pair is a hard seal composed of a ball and an inclined plane sealing seat; when the soft seal fails due to high temperature, the hard seal composed of the ball and the inclined plane sealing seat can still prevent the media from flowing backwards; the ball is used as a sealing component, so that the repeated positioning and sealing effect is good; the sealing ring is designed into an X shape, is sensitive to elastic deformation, can realize sealing by only small pressure, can reduce spring force and realize low-pressure sealing.
Drawings
Fig. 1 is a structural sectional view of the present invention.
Fig. 2 is a perspective view of the ball seat of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
The ball sealing check valve comprises a valve body 1, a sealing ring 2, a ball 3, a ball seat 4, a spring 5, a gasket 6 and a spring collar 7 for a hole; the valve body 1 is provided with a water inlet 11, a water outlet 12 and an inclined plane sealing seat 13; the water inlet 11 and the water outlet 12 are sealed and isolated by a ball 3 and a sealing ring 4; the method is characterized in that: the check valve has two sealing pairs, one sealing pair is a soft seal composed of a ball 3 and a sealing ring 2, and the second sealing pair is a hard seal composed of the ball 3 and an inclined plane sealing seat 13.
As an improvement, the ball seat 4 is designed into a cross shape, so that the flow area of the medium is increased; the ball seat 4 is provided with a concave spherical surface 41 which can be completely attached to the ball body, so that the ball is prevented from falling off in the up-and-down moving process, and repeated positioning and sealing are realized; the ball seat is made of nontoxic plastics.
As an improvement, the sealing ring 2 is designed into an X shape, the elastic deformation is sensitive, the sealing can be realized by only small pressure, the spring force can be reduced, and the low-pressure sealing is realized.
The working principle of the utility model is further described:
under normal conditions, the pressure in front of the valve is larger than the pressure behind the valve, the pressure difference in front of and behind the valve overcomes the spring force, the ball is separated from the sealing ring, the valve is opened, and the medium flows normally; when the outlet pressure is greater than the inlet pressure, the ball is contacted with the sealing ring under the action of the pressure difference and the spring force, the valve is closed, and the medium is effectively prevented from flowing backwards; when the soft seal fails due to high temperature, the hard seal composed of the ball and the bevel seal seat can still prevent the media from flowing backwards.
Claims (3)
1. The ball sealing check valve comprises a valve body, a sealing ring, a ball seat, a spring, a gasket and a spring collar for a hole; the valve body is provided with a water inlet, a water outlet and an inclined plane sealing seat; the water inlet and the water outlet are sealed and isolated by a ball and a sealing ring; the method is characterized in that: the check valve has two sealing pairs, one sealing pair is a soft seal composed of a ball and a sealing ring, and the second sealing pair is a hard seal composed of a ball and an inclined plane sealing seat.
2. The ball seal check valve of claim 1, wherein: the ball seat is designed into a cross shape, so that the flow area of the medium is increased; the ball seat is provided with a concave spherical surface which can be completely attached to the ball body, so that the ball is prevented from falling off in the up-and-down moving process, and repeated positioning and sealing are realized; the ball seat is made of nontoxic plastics.
3. The ball seal check valve of claim 1, wherein: the sealing ring is designed into an X shape, is sensitive to elastic deformation, can realize sealing by only small pressure, can reduce spring force and realize low-pressure sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921598670.2U CN210484700U (en) | 2019-09-25 | 2019-09-25 | Ball sealing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921598670.2U CN210484700U (en) | 2019-09-25 | 2019-09-25 | Ball sealing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210484700U true CN210484700U (en) | 2020-05-08 |
Family
ID=70509152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921598670.2U Active CN210484700U (en) | 2019-09-25 | 2019-09-25 | Ball sealing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210484700U (en) |
-
2019
- 2019-09-25 CN CN201921598670.2U patent/CN210484700U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |